The management of Wyoming Corporation is considering the purchase of a new machine costing $375,000. The company's desired rate of return is 6%. The present value factor for an annuity of $1 at interest of 6% for 5 years is 4.212. In addition to the foregoing information, use the following data in determining the acceptability of this investment:

Year Operating Income Net Cash Flow 1 $18,750 $93,750 2 18,750 93,750 3 18,750 93,750 4 18,750 93,750 5 18,750 93,750 The average rate of return for this investment is